Hi there,
This is Bogdan from Romania.
I'm a mechanical engineer - specialized in the industrial robotic field, 3D designer and modeler (from time to time and some projects I could make the functional prototype too).
I'm doing product design, industrial design, reverse engineering, ideation, etc.
I have over 15 years experience working on various systems/devices across multiple industries, from concept to launch.
1 - your idea is fully workable, but it needs a twist... (i've studied the ir screening for another application a few years ago)
2 - in the first place you need to know the window dimensions and how the new screen could be mounted and fit inside the shop window frame...
3 - it will require a special assembly (would be so easy just to place some ir emitters and ready to hide the models...)
4 - after the model is made, the prototype could be built by yourself - would be to expensive to build it here and ship overseas...
For any more questions we could chat here.
Regards
Bogdan